Funct. Mater. 2013; 20 (4): 466-470.

Revealing the morphological peculiarities of Y3Al5O12:Nd laser ceramics by ion beam sputtering

O.M.Vovk, M.A.Chayka, P.V.Mateychenko, R.P.Yavetskiy, D.Yu.Kosyanov, S.V.Parkhomenko

Institute for Single Crystals, STC "Institute for Single Crystals", National Academy of Sciences of Ukraine, 60 Lenin Ave., 61001 Kharkiv, Ukraine


The morphological peculiarities of Y3Al5O12:Nd laser ceramics prepared by vacuum sintering of co-precipitated nanopowders have been revealed by ion beam sputtering of the ceramics surface. Inclusions with a cross section up to 5 μ m located between the grain boundaries as well as pores and grain boundaries were detected on the surface of Y3Al5O12:Nd ceramics treated by ion sputtering since sputtering rate of these inclusions is much lower compared to bulk of ceramics. Qualitative elemental composition of inclusions is same as that of Y3Al5O12:Nd ceramics. It was suggested that the inclusions were formed as a result of local deviation from stoichiometry Y3Al5O12 during processing of ceramics and have different phase composition compared to the parent garnet phase. The concentration of revealed inclusions which is higher the one of pores.


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